Data transfer from forms + connection of payment and its untying

Hello!

The website contains several pages - the main form (multistep form of several steps) and the payment page with the option to decouple the map

It is necessary to transfer data from website to database (database must be created)

Data transfer via API in Unicenter and service SMS mailings

Because it multistep form is required with each step to add to the base data

Can charge https://developer.qiwi.com/ru/payments/#api - using tokenization

The ability to decouple the map on a separate page, must also be implemented

The site will show more to suitable candidates

Thank you